Title:
Ladder step
United States Patent 2432206
US Patent References:
/0387259.html
- - 0387259

/0407079.html
- - 0407079


Inventors:
Howard, Mott John
Publication Date:
12/09/1947
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Assignee:
Howard, Mott John
Primary Class:
182/121
International Classes:
E06C7/16; E06C7/00
Foreign References:
GB201330A